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the site is casino.pt we created the site 7-8 month ago, we started to push it by good and natural links (http://www.opensiteexplorer.org/www.casino.pt/a!links!!filter!all!!source!external!!target!page), links in sites with content rich and most of them related to gambling and sport topics. During the first 3-5 months, the rankings were better and better, after the 6 months, the site lose all its rankings. Aditional details http://www.casino.pt/robots.txt http://www.google.pt/#hl=pt-PT&source=hp&biw=1280&bih=805&q=site:http%3A%2F%2Fwww.casino.pt&aq=f&aqi=&aql=&oq=&fp=2651649a33cd228 no critical errors in google webmaster tools any idea how can I fix it? thanks